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Unified Diff: base/files/scoped_file.h

Issue 202113004: Implement ScopedFD in terms of ScopedGeneric. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 9 months ago
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Index: base/files/scoped_file.h
diff --git a/base/files/scoped_file.h b/base/files/scoped_file.h
new file mode 100644
index 0000000000000000000000000000000000000000..f5d7ecde7bf7b3cf18c927e301643351770fa12b
--- /dev/null
+++ b/base/files/scoped_file.h
@@ -0,0 +1,47 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_FILES_SCOPED_FILE_H_
+#define BASE_FILES_SCOPED_FILE_H_
+
+#include <stdio.h>
+
+#include "base/base_export.h"
+#include "base/logging.h"
+#include "base/scoped_generic.h"
+#include "build/build_config.h"
+
+namespace base {
+
+namespace internal {
+
+#if defined(OS_POSIX)
+struct BASE_EXPORT ScopedFDCloseTraits {
+ static int InvalidValue() {
+ return -1;
+ }
+ static void Free(int fd);
+};
+#endif
+
+} // namespace internal
+
+#if defined(OS_POSIX)
+// A low-level Posix file descriptor closer class. Use this when writing
+// platform-specific code, especially that does non-file-like things with the
+// FD (like sockets).
+//
+// If you're writing low-level Windows code, see base/win/scoped_handle.h
+// which provides some additional functionality.
+//
+// If you're writing cross-platform code that deals with actual files, you
+// should generally use base::File instead which can be constructed with a
+// handle, and in addition to handling ownership, has convenient cross-platform
+// file manipulation functions on it.
+typedef ScopedGeneric<int, internal::ScopedFDCloseTraits> ScopedFD;
+#endif
+
+} // namespace base
+
+#endif // BASE_FILES_SCOPED_FILE_H_
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